What is the size of car wheel hubs?
1 Answers
Wheel hub size parameter R represents the diameter of the wheel hub. The wheel hub size is printed on the tire sidewall, and there are two representation methods, such as 34X7 or 7.50-20. The former is for high-pressure tires, and the latter is for low-pressure tires. Additionally, there are many other markings, for example, D is used for light vehicles, F for medium vehicles, G for standard vehicles, and H, L, J for large luxury and high-performance vehicles. If an R is printed on the tire sidewall, such as 175R13, it indicates that the tire is a radial tire, with a width of 175mm (6.9 inches), mounted on a wheel rim with a diameter of 13 inches (330mm). Generally, the word RADIAL is also engraved. Advantages of large wheel hubs: Driving feel. The size of the wheel hub affects the driving experience of a car because the overall wheel size cannot be changed. Therefore, the larger the wheel hub, the thinner the tire's thickness, and the more noticeable the road feel. During daily driving, extra caution is needed, especially when encountering rough road conditions such as bumps and potholes. Improved handling performance. With large wheel hubs, the tires chosen are inevitably wider and thinner, meaning a lower aspect ratio. At high speeds, the vehicle becomes more stable with stronger grip, and the side amplitude during turns is reduced. Such modifications enhance the car's visual appeal and handling performance. Disadvantages of large wheel hubs: Increased costs. In general perception, larger wheel rims and low-profile tires provide superior handling, which is true, but this comes at a high cost. For better handling, larger wheel rims must be lighter, requiring more advanced manufacturing processes and materials, naturally leading to higher costs. Moreover, when the size reaches levels such as 19 inches and 20 inches, not only do tire prices suddenly rise, but the available brands and styles also become increasingly limited.
